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Historical drilling

Historical drilling at Basin Gulch: more than 320 holes

Last updated: Published by Lannister Mining

How much drilling has been done at Basin Gulch?

More than 320 historical drill holes have been completed at Basin Gulch, according to Lannister Mining.

Lannister Mining highlights results such as 1.8 g/t Au over 162 meters from surface and 156 g/t Au over 3 meters. Historical drilling and new work programs are planned to feed a future maiden mineral resource estimate, with new drilling aimed at additional target areas.

Drill and trench highlights

All results below are historical and stated exactly as Lannister Mining reports them.

Drill hole intersectionsBar length shows interval length in meters.
  • 0.66 g/t Auover 326 m (1,069.6 ft), from surface
  • 1.8 g/t Auover 162 m (531.5 ft), from surface
  • 3.2 g/t Auover 72 m (236.2 ft), from surface
  • 25 g/t Auover 14 m (45.9 ft)
  • 156 g/t Auover 3 m (9.8 ft)
Trench highlightsGold and silver over continuous surface lengths.
  • 62 g/t Au and 32 g/t Agover 159 m (521.7 ft)
  • 4 g/t Au and 23 g/t Agover 146 m (479 ft)
  • 25 g/t Au and 45 g/t Agover 61 m (200.1 ft)
  • 5 g/t Au and 54 g/t Agover 34 m (111.6 ft)

Every highlight in one table

Basin Gulch historical drill and trench highlights, as reported by Lannister Mining
ResultGradeLength (m)Length (ft)From surface
Drill hole0.66 g/t Au3261,069.6Yes
Drill hole1.8 g/t Au162531.5Yes
Drill hole3.2 g/t Au72236.2Yes
Drill hole25 g/t Au1445.9Not stated
Drill hole156 g/t Au39.8Not stated
Trench62 g/t Au and 32 g/t Ag159521.7Surface trench
Trench4 g/t Au and 23 g/t Ag146479Surface trench
Trench25 g/t Au and 45 g/t Ag61200.1Surface trench
Trench5 g/t Au and 54 g/t Ag34111.6Surface trench

Understanding the drilling

Definition: mineral exploration drilling

Mineral exploration drilling means boring holes into rock to bring samples to surface and measure metal grades below ground. Reverse circulation drilling returns crushed rock chips and is generally faster; diamond core drilling returns solid rock cylinders that show structure and texture. Each sampled interval is assayed, and results are reported as grade over length, such as 1.8 g/t Au over 162 meters. At Basin Gulch, more than 320 historical holes have already been drilled.

Why historical data needs confirming

Historical results come from earlier operators and older sampling methods. Before they can support a formal mineral resource estimate, modern confirmation drilling checks that new samples agree with old ones. Lannister Mining states that Basin Gulch could host a significant maiden mineral resource estimate after expansion and confirmation drilling of historical drill intercepts.

How drill data becomes a resource estimate

  1. Compile historical data

    Gather collar locations, logs and assays for the 320+ historical holes.

  2. Confirmation drilling

    Re-test selected historical intercepts with modern sampling and assays.

  3. Expansion drilling

    Step out where mineralization is open at depth and along strike.

  4. Resource estimate

    A qualified person models tonnage and grade under NI 43-101 or S-K 1300.

Common questions

How many drill holes have been completed at Basin Gulch?

More than 320 historical drill holes have been completed at Basin Gulch, according to Lannister Mining. That historical drilling, together with new work programs, is planned to feed a future maiden mineral resource estimate. Future drilling is also planned to focus on additional mineralized target areas within the property.

More in the Basin Gulch FAQ

What are the best historical drill results at Basin Gulch?

Lannister Mining highlights five historical drill intercepts: 1.8 g/t Au over 162 meters from surface; 0.66 g/t Au over 326 meters from surface; 3.2 g/t Au over 72 meters from surface; 156 g/t Au over 3 meters; and 25 g/t Au over 14 meters. These figures are historical and stated exactly as the company reports them.

More in the Basin Gulch FAQ

What did trenching at Basin Gulch find?

Historical trenching reported gold and silver over long surface lengths. Lannister Mining lists 62 g/t Au and 32 g/t Ag over 159 meters, 4 g/t Au and 23 g/t Ag over 146 meters, 5 g/t Au and 54 g/t Ag over 34 meters, and 25 g/t Au and 45 g/t Ag over 61 meters, all as reported historical figures.

More in the Basin Gulch FAQ

Are historical drill results the same as a mineral resource?

No. Historical drill results are data points, while a mineral resource is a formal estimate prepared by a qualified person under a reporting standard such as NI 43-101 or S-K 1300. Lannister Mining plans to use historical drilling plus new confirmation and expansion drilling toward a maiden mineral resource estimate at Basin Gulch.

More in the Basin Gulch FAQ

What is mineral exploration drilling?

Mineral exploration drilling is drilling holes into rock to sample what lies below surface and measure metal grades. Common methods include reverse circulation drilling, which returns rock chips, and diamond core drilling, which returns solid cylinders of rock. Results guide where to drill next and eventually support resource estimates.

More in the Basin Gulch FAQ

What is confirmation drilling?

Confirmation drilling, sometimes called twin or verification drilling, repeats or closely follows historical holes to check that modern sampling matches older results. Lannister Mining states that Basin Gulch could host a significant maiden mineral resource estimate after expansion and confirmation drilling of historical drill intercepts.

More in the Basin Gulch FAQ

How we chose these facts

This page was written by Lannister Mining, the company exploring Basin Gulch and the publisher of this site. Property figures are taken from Lannister Mining published materials and are stated exactly as reported, with historical results labeled as historical. General explanations describe common mineral exploration practice. Read the full methodology.

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Published by Lannister Mining